Typewriting machine



J. B. HOLDEN TYPEWRITING momma Filed Nov. 13,-

1924 2 Sheets-Sheet l p llL Z INVENTOR A'rfoRNEY WITNESSE J. B. HOLDENTYPEWRITING MACHINE Filed Nov. 13, 1924 July 13,1926.

' "2 Sheets-Sheet 2 INVENTOR M ATTORNEY Patented July 13, 1926.

UNITED ;.S'I:-ATES PATIENT OFFICE."

.rosnrn n. nommn, or SYRACUSE, new YORK, assrenon TO ma -m TYPE warrenCOMPANY, cannon, NEW YORIQ'A coaronamzon or new Yonz.

'rrrnwnmme Macrame. I

jppllqltion and November is, 924. semi no. 749,679.

My invention relates to typewriting or like machines and moreparticularly to th paper feedmechanism thereof.

he main object of my invention, genera ally stated, is to providesimple'paper feed releasing means which are inexpensive to manufacture,are highly efficient in use, are easy to assemble in the machineor'replace, and are not liable to beco me injured or broken. V

To the above and other ends which will hereinafter appear, my inventionconsists in the featuresv of construction, combinations of devices,andarran 'ements of parts hereinafter described an out in the appendedclaims.

'In the accompanying drawings, wherein like reference charactersindicate correspending parts in the different views,

Figure 1 is a detail fragmentary rear elevation of the carriage of aRemingtonportable machine equipped with the devices of my invention, andwith. parts omitted.

Figure 2 is a detail fragmentary top plan view of the same.

Figure 3 is an enlarged detail fragmentary transverse sectional viewtaken on the I line 3 3 of Fig. 2 and looking in the direction of thearrows at said line. 30 Figure 4 is a like view taken on the line 4-4 ofFig. 2 and looking inthedirection of the arrows at said line.

Figure 5 is an enlarged detail perspective is view of the holding springfor the releasing.

means shown detached. p

Figure 6 is a detail perspective view of the floating feed rollreleasing member shown detached and with the spring removed therefrom.

Figure 8 is a like view of the same except that the parts are showndisposed as they appear wnen the feed rolls are locked off.

*igure 9 is afragmentary detail top lan view of certain of the partsshown in ig.

7 disposed as the parts appear in said fi ure.v

Figure 10 a like view of the same s owing the parts as they are disposedin F1 8.

the present instance, in altemington portparticularly pointed Figure 7is an enlarged detail transverse sectional view taken through thecarriage on I have shown my invention embodie in able machine, in whichthe invention may be readily incorporated with but little change. Itshould bev understood, however, that the invention is not restricted toembodiment in such machinebut may be emplo ed in typewriting or likemachinesgeneral y, wherever found available. q

The present construction is in the nature of an m rovement on thosedisclosed in my Patent" o. 1,458,133 dated June 12th, 1923,

in my application Sr. No. 7 23,489 filed July 1, 1924 and in the aplication of Herbert. o. 729,225, filed July E. Bridgwater, Sr. 31,1924.7

The carriage of the Remington portable machine comprises a. main bodyplate 1 provided with end plates 2 each formed with a foot piece 3 bywhich it issecured to the body portion 1 of the carriage. The end platesare provided with bearings to receive a platenspindle 4 on which theplaten 5 is mounted. The usual paper apron 5 been omitted to avoidconfusing the illustration.

Bracket plates 6 are secured by, screws 7 to the upper side of the bodyplate 1 of the carriage, and each of said plates 6 is formed with rearbearings 8 andfront bearings 9. The rear bearings receive pivot rods 10that also extend through bearin s 11 on a feed. roll support or carrier12 tiat extends longitudinally substantially throughout the len 11 ofthe platen. The carrier 12, which t us pivotally mounted on the carriageto swing towards and away from the paten, is

in the nature of a comparatively thin sheet metal strip or plate. Forreasonswhich will hereinafter appear it was found necessary heretoforeto strengthen this strip 19 by a reinforcing channel bar of sheet metal,sub-- stantially U-shaped in cross section, which was secured to thestrip 12 at the front side thereof and extended longitudinallysubstantial-ly throughout the length of said strip. By my presentinvention I am enabled to dispense with this reinforcing bar, forreasons which will presently appear. Loosely connected at 13 to thecarrier 12 are two roll holders 14. Feedrollsf15 are mounted in eachholder at oppositesides of the associated pointof connection 13, andeachholder is guided for foreand-aft teetering movementon its connection 13by guide finger l6, 7

as disclosed in my application Sr; 7 No. 7 23 489 hereinbefore referredto.

he bar feed. roll. carrier 12 is formed at cured by screws 20 to thecarriage plate 1 about midway in the length thereof. Each end portion ofthis sprmg bears 'down on a projection 17 tending to turn the feed rollcarrier 12 on its pivots l and move the rear feed rolls 15 thereon. V 7

Forward feed rolls 21. are mounted in a sheet metal carrier 22 providedwith bearings 23 to receive'pivot rods 24; said pivot rods beingsupported in the forward bearings 9 on the bracket plates 6. In thismanner the forward set of feed rolls 21 is pivotally mounted to'swingfore-and-aft of the machine into and out of contact with the platen, orthe paper thereon. Rearwa-rdly projecting arms 25 are formed integralwith the carrier 22, and extend over the arms 17 and beneath the freeend portions of a against the platen, or the paper 7 spring 26 parallelwith the spring 18 and'secured in .alike manner to the block 19. Thespring 28 tends to force the forward feed rolls against the platen.

The parts as thus far described may be of the usual construction.

In order to release the feed rolls 15 and 21, and if necessary lock orhold them in the released positionas shown in Fig. 8, I provide thefollowing construction :The block 19, fixed to the carriage midway inthe length "thereof, is provided with upstanding projections 2iwhich'constitute a fixed abutment withwhich the releasing deviceco-acts, as will presently appear. Interposed between the rear face ofthis abutment and the forward face of the feed roll carrier 12 is a re--leasing or controlling or actuating member which in the present instanceism the nature of a block or bar 28 angular in cross section.

. This bar 28, as will be seen from an inspection of Fi 3 is locatedabout centrally of the pivoted roll carrier 12 and extends, in

the present instance, longitudinally thereof.

to about the points wherethe spring 18 exerts its force against saidcarrier 12 through the arms 17. The left-hand end of the an gular bar isreduced to form a bearing stud 29 which is received in an open-mouthedsubstantially horizontally disposed bearing slot 30. 'As best shown inFig. 4, this hearing slot is formed in a bracket 31which has its footpiece 32 riveted at 33 to the carrier 12. A corresponding bracket 34(see Fig. 3) is secured by screws 35 to the right-hand end of thecarrier 12 to aidin supporting and guiding the releasing device. Thepart 28 may be regarded as a part of or a cam or enlargement on a rockshaft 36. For manufacturing purposes, however, I prefer to make theparts 28 and 36 from separate pieces and unite them by providing a holein the right-hand end of the member 28 to receive the inner end of therock shaft 36, as indicated in Fig. 2. The two parts may then be fixedlyunited by spot welding or otherwise. The outer end of the shaft 36extends to the end of the carriage where it is bent to form a crank arm37 provided with a finger piece 38. Said finger piece enables theoperator to' rock the shaft, and the member 28 forming part thereof,from the Fig. 7 to the Fig. 8 position, or vice versa. A stop pin 39projects inwardly from the right-hand end plate 2 of the carriage andco-acts with the crank arm 37 to limit the rocking movement of thereleasing member when it reaches the Fig. 8 position. The

41 is received in this tapped opening after passing through a centrallylocated opening 42 in a spring member 43, shown in detail in Fig. 5.This member is in the nature of a bowed leaf spring fiexed forwardlyfrom the screw 41 to the ends of the spring. At each end the spring isprovided with ears 44 that extend rearwardly and loosely embrace thepart 28 on the top and bottom sides thereof. This prevents the springfrom turning on the screw 41 by which it is fas tened to the member 28,but said ears also have another function, as will presently appear. Itwill be understood that the spring 43 is of relatively hard metal havinga smooth surface and is interposed between the part 28 and the contactfaces of the abutment 27. In the back and forth rocking movements of themember 28, between the Figs. 7 and 8 positions, wear will not be on therelatively soft part 28 but will be between the abutment 27 and theforward face of spring 43 and the lower ears 44 thereon where they jointhe body portion of the spring. hen the parts are in the normalposition, shown in Figs. 7 and 9, the spring 43'will bear against theabutment 27 and the force of the spring will be exerted to hold themember 28, and the rock shaft 36 forming part thereof, against looseturning movement, and also against a fore-and-aft bodily floatingmovement in the guide brackets 31 and 34. However, the power of thisspring, while sufficient for the purpose stated, is ineffective toovercome the power of the springs 18 and 26 by which the feed rolls 15and 21 are pressed against the platen.

In the operation of the releasing device, the first part of the movementthereof from the Fig. 7 to the Fig. 8 position results in compressingthe flexed ends of the spring 43 against the front face of the part 28.When the spring 43 has been thus compressed further turning of the rockshaft and its member 28 will cause the latter to operate with a cammingaction against the abutment dead centered against t 27. This'results ineffecting a slight lateral or rearward'bodily floating movementof thepart 28-36 in its guides, as well as a turning movement, thereby causingthe roll carrier 12 to turn on its pivots 10 and to move the feed rolls15 away from the platen. This causes an upward movement of the arms 17against the force of the spring 18, at thesame time carrying the arms upagainst the force of the spring 26, thereby releasing the forwardfeedrolls 21.

Whenthe releasingdevicelhas been shifted to the full extent ofitsreleasing movement, shown in Figs; 8 and 10, it will be seen thatopposite angular corners of'the members 28 are disposed substantiallyhori zontally, and the full extent of camm'ing off action has beenattained. It also will be seen that at this time the force ofthe springs18 and 26 exerted throu h the carrier 12 is he fixed abutment 27, thusholdin the parts in the released po sition indefii itely, or until theshaft is rocked in the opposite direction by the finger piece 38. I g

In assembhng the arts t is merely necesi sary to mount the single member28-36 led in place, with the sprin -ing against the'bracket 31. Saidmember is 37-38 in place by'introducing it through the open-mouths intothe bearing slots in the brackets 31and 34. 'When thus mount- 43 bearinagainst the abutment 27 s'ai member w be held against movementlongitudinally of the carria e in one direction by the shoulder wherethe body joins the reduced end 29 bear-- held against movement intheopposite direction by the crank arm 37 co-acting with the inner face ofthe right hand end plate 2 of the carriage. I

The releasing mechanism is simple, stron i l I 0 durable and effectivein use and is not liable to beinjured or broken. rHowever, should theabove mentioned member reqiure re moval orireplacement, for any reason,this r -may be quickly effected.

The centering of the application of power to simultaneously anduniformly release all feed rolls in the manner disclosed herein is animportant factor. Thus it will be under- --st00d that by overc'omingtheresistance of i r the springsof the carriers 12 and 22 and releasing thefeed rolls by force directed againstsaid carriers centrall in thelengths thereof, instead of at one en only, as in the previousconstructions referred to, a more efiective release of the feed rollsmaybe brought about without liability of bending or straining thecomparatively light 'sheet metal from which saidcarriers are made,and'witho ut reinforcing and strengthening the parts to render therelease efiective.

By extending the part 28 to the points Where the power of the springs 18and 26 is applied to the member 12, and causing said mernber to bearagainst the comparatively light sheet metal member 12 throughout thedistance between these points, I am enabled 1 tageous, if not absolutelyessential, to make the compactly arranged parts as light as possibleconsistent with etiiciency of operation. From what has been said it willbe'under-' stoodthat the devicesof my invention can be easily embodiedin Remington portable machines without materially changing existingstructural features thereof.

lVhat I claim as new and desire by Letters Patent is 1. Ina typewritingor like machine, the,

combination of a carriage, a platenv carried thereby, a series of feedrollers that extend longitudinally of said platen, a pivoted sheet metalcarrier that extends substantially throughout the length of the platenand'on which said series of feed rollers is mounted, springs which applytheir force to said carrier and through it to the series of feed rollersand'cause' the latter to bear against the platen or the paperthereon,and releasing means for moving said carrier Without bendingit, in orderto simultaneously release all of the feed rollers of'said series, saidreleasing means comprising a floating rock shaft having a 'cammingportion that extends longitudinally of the carriage to the point ofresistance of said springs, and a fixed abutment on the carria e about.midway in the length thereof an between which abutment and carrier thecammi'ng portion of the shaft is received to coact with the carrierabout midway in the 'lengththereof and at about the points 7 where theresistance of said springs is exerted against the carrier, in order tomove the carrier Without bending it and thus simultaneously release thefeed rollers.

2. In a typewriting or like machine, the combination'ofa carriage, aplaten, a rock shaft that extends longitudinally in the direction of thetravel of the carriage, slotted guides on the carriage that receive saidshaft and permit it to have a back and forth movement in one directionas well as a turn ing movement, an abutment fixed on theearriage, anactuating member carried by said shaft aboutlmidway in the length of thecarriage and having a camming action against said abutment when theshaft is turned in one direction thereby etfectinga lateral shifting ofsaid actuating member and shaft, a feed roll carrier that extends tosecure substantially throughout the length of the platen, a series offeed rollers that extend longitudinally of the platen and that arecarried by said carrier, said carrier being controlled by a shiftingmovement of said actuating member, and a finger piece formed on one endof said rock shaft for turning it.

3. In a typewriting or like machine, the combination of a carriage, arock shaft that extends longitudinally in the direction of the travel ofthe carriage from near one end thereof beyond a point midway in thelength of the carriage, slotted guides on the carriage that receive saidshaft and permit it to have a back and forth lateral movement in onedirection as well as a turning movement, an abutment fixed on thecarriage, a spring-pressed feed roll carrier, an angular block-likeactuating member fixed to said shaft about midway in the length of thecarriage and interposed between said carrier and abutment, said memberhaving a camming action on the abutment to shift the actuating memberand shaft laterally and thus shift the roll carrier with which saidmember also co-acts against the force of its spring, the constructionand arrangement of the parts being such that said member issubstantially dead centered against the action of the spring pressure ofthe roll carrier when the shaft is turned the limit of its movement inone direction to hold and maintain the feed rolls released, a fingerpiece. spring which co-acts with said shaft to prevent loose movementthereof when the shaft is in normal position.

4. In a typewriting or like machine, the combination of a carriage, aplaten carried thereby, a fixed abutment on the carriage, a feed rollcarrier that extends substantially throughout the length of the platen,a series of feed rollers that extend longitudinally of the platen andthat are carried by said carrier, springs that act on saidcarrier toforce the feed roll against the platen, a rock shaft that extendslongitudinally of the carriage between said carrier and abutment, and anactuating member on said shaft that is disconnected from but coacts withsaid abutment and carrier to shift the feed rolls off by a cammingaction, said actuating member extending longitudinally of said shaft tothe points of resistance of said springs against the feed roll carrierbut free from the resistance of said springs when the latter press thefeed rollers against the platen.

5. In a typewriting or like machine, the combination of a carriage, aplaten, a fixed abutment on the carriage about midway in the lengththereof, a feed roll carrier that extends substantially throughout thelength for turning said rock shaft, and a of the platen, a series offeed rollers that extend lengthwise of the platen and which are carriedby said carrier, springs that act on said carrier between the ends ofthe carriage and a point midway in the length thereof and apply theirforce through the carrier to the said series of feed rollers, and a handcontrolled actuating member interposed between and disconnected fromsaid abutment and carrier but coacting therewith when turned in onedirection to move said carrier and release the said series of feedrolls, said actuating member contacting with said carrier intermediatethe points where said springs exert their force against the carrier.

6. In a typewriting or like machine, the combination of a carriage, aplaten, a fixed abutment on the carriage about midway in the lengththereof, a spring-pressed feed roll carrier, a floating hand operatedactuating member interposed between said abutment and carrier to shiftthe carrier and release the feed rolls when turned in one direction,said actuating member being normally free from the pressure of thespring or springs of said'carrier, and a spring 0 less power than thatof the spring or springs of said carrier for holding the floatingactuating member against free motion when the feed rolls are applied tothe platen or the paper thereon.

7. In a typewriting or like machine, the combination of a carriage, aplaten, a fixed abutment on the carriage, a spring-pressed feed rollcarrier, a floating hand operated actuating member interposed betweensaid abutment and carrier and operative to cam 0E the carrier and feedrolls when turned in one direction, and a relatively light springconstituting a contact face between said actuating member and abutmentand tending to .hold said actuating member against free movement whenthe feed rolls are applied.

8. In a typewriting or like machine, the combination of a carriage, aplaten, a fixed abutment on the carriage, a spring-pressed feed rollcarrier, a floating hand operated actuating member interposed betweensaid abutment and carrier and operative to cam off the carrier and feedrolls when turned in one direction, and a relatively light bowed leafspring secured to said actuating mem' her and constituting a contactface between the latter and said abutment, said leaf spring also tendingto hold said actuating member against free movement when the feedrollers are applied.

Signed at Syracuse, in the county of Onondaga and State of New York,this 7 day of November, A. D. 1924.

i JOSEPH B. HOLDEN.

